Combining advertising data and scan response data nRF52840 SDK16

[Nikosant03]

Hi everyone,

I created a custom service that I want to be advertised through scan response. Also, I want to advertise the INFORMATION SERVICE through advertising data. I'm trying to combine advdata and srdata but when I am advertising only the custom service is appeared.

This is the struct array holding the services along with their types

static ble_uuid_t m_adv_uuids[] = 
    {
        {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE},
        {IMU_SERVICE_UUID, BLE_UUID_TYPE_VENDOR_BEGIN}
    };

Putting one UUID in the advertising data and one UUID (the custom one) in the scan response data

  init.advdata.uuids_complete.uuid_cnt = 1;              
  init.advdata.uuids_complete.p_uuids = &m_adv_uuids[0]; 

  init.srdata.uuids_complete.uuid_cnt = 1;              
  init.srdata.uuids_complete.p_uuids = &m_adv_uuids[1]; 

But when I advertise only the custom service appears

Any advice?

[Jørgen Holmefjord]

Hi,

I think this has to do with that nRF Connect for Desktop does not combine the data from the advertising packet and the scan response packet. I did a similar test, and I see the Services field changing between DIS and NUS in the desktop version of nRF Connect. In the mobile application, the data is combined and both are shown:

Could you test the mobile application, to see if you are able to see both services?

Best regards,
Jørgen

[Nikosant03]

Thank you for your answer Jorgen, I confirm that I can see both services on my phone.. So this is a limitation from the side of desktop nRF Connect?